Is Avengers 3 Samuel L. Jackson's Final Marvel Movie?

Just how long will Samuel L. Jackson continue to play Nick Fury in the Marvel Cinematic Universe? As of now, the actor only has 2 films left on his 9 movie contract. Speaking with IGN, the actor shares this bit of information as a matter of fact, but holds out hope that he will eventually extend his contract with Marvel:

"I've only got two more movies in my contract. That might be the end of it unless I get an extension! I don't know..."

These questions, of course, have not yet been answered. Nick Fury was left in pretty bad shape during the course of Captain America: The Winter Soldier, and seemed to be gearing up for a diminished role in future Marvel movies. Its also long been understood that Cobie Smulders's Maria Hill would take over Nick Fury's post at some point. But when is that set to happen?

As Marvel continues past this decade, growing into one of the biggest brands in global entertainment, we're sure to see all of the current actors replaced at some point. But as you can see by Samuel L. Jackson's comments, he is hoping for a contract extension with the company. If that doesn't happen, its unclear if they will kill off the character altogether or simply replace him. Maybe a solo Nick Fury movie will happen? Is Samuel L. Jackson still waiting for that to happen?